Aim MIL-STD-1553 - Page 401

MIL-STD-1553 Reference Manual
387
Chapter 9 – Bus Monitor Functions
13
API_BM_MSG_ERR_HCNT
High wordcount error
14
API_BM_MSG_ERR_LCNT
Low wordcount error
15
API_BM_MSG_ERR_ILLEGL
Illegal command word
B
B
U
U
S
S
Bus Flag
Value
Constant
Description
1
API_RCV_BUS_PRIMARY
Primary Bus
0
API_RCV_BUS_SECONDARY
Secondary Bus
S
S
T
T
A
A
T
T
U
U
S
S
_
_
W
W
O
O
R
R
D
D
Bit 10 to Bit 0 from Status Word of MILbus
A
A
i
i
U
U
I
I
n
n
t
t
1
1
6
6
s
s
t
t
a
a
t
t
u
u
s
s
_
_
w
w
o
o
r
r
d
d
1
1
Status Word (16-bit Word, LS-Byte first)
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
STATUS_WORD
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
STATUS_WORD
S
S
T
T
A
A
T
T
U
U
S
S
_
_
W
W
O
O
R
R
D
D
Status Word of MILbus
For RTRT-Transfers this reflects the status word of the Transmit RT
A
A
i
i
U
U
I
I
n
n
t
t
1
1
6
6
s
s
t
t
a
a
t
t
u
u
s
s
_
_
w
w
o
o
r
r
d
d
2
2
Only valid for RTRT transfers
Status Word (16-bit Word, LS-Byte first)
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
STATUS_WORD
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
STATUS_WORD
S
S
T
T
A
A
T
T
U
U
S
S
_
_
W
W
O
O
R
R
D
D
Status Word of MILbus of the Receive RT
A
A
i
i
U
U
I
I
n
n
t
t
1
1
6
6
b
b
u
u
f
f
f
f
e
e
r
r
[
[
3
3
2
2
]
]
Message Data
A
A
i
i
U
U
I
I
n
n
t
t
3
3
2
2
t
t
t
t
a
a
g
g
32-Bit Time Tag
Bit 31
Bit 30
Bit 29
Bit 28
Bit 27
Bit 26
Bit 25
Bit 24
0 (reserved)
SECS (0..59)
Bit 23
Bit 22
Bit 21
Bit 20
Bit 19
Bit 18
Bit 17
Bit 16
SECONDS_OF_MINUTE (0..59)
MICROSECONDS (0..999999)
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
MICROSECONDS_OF_SECOND (0..999999)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
MICROSECONDS_OF_SECOND (0..999999)
Return Value
A
A
i
i
I
I
n
n
t
t
1
1
6
6
This function returns API_Ok or API_ERR_QUEUE_EMPTY if no error occurred.
If the return value is not equal to API_OK or API_ERR_QUEUE_EMPTY the
function ApiGetErrorDescription can be used to obtain an error description.